1. Only (D) is possible: His grandpa has been dead for ten years. (A) is impossible because we cannot use present perfect with a specific time reference. (B) is gramatically possible but makes no sense unless after 10 years the grandfather was

Yankee wrote: I do see your point, though. I suppose we would tend to be more "willing" to use the present perfect in a sentence such as " My bike's been stolen. " -- especially with "Damn!" preceding it. Still, I wouldn't find " Damn! My bike